2006-10-04 13:07:35 · 3 answers · asked by um yea hi 4 in Science & Mathematics ➔ Chemistry
look here:
http://en.wikipedia.org/wiki/Radiocarbon_dating
2006-10-04 13:11:36 · answer #1 · answered by Dr. J. 6 · 0⤊ 0⤋
AHAHAH.. we had to do a try in this as we communicate in college. Oky doky.. here is going: A a million/2 existence is the time it takes for a radioactive isotope to lose a million/2 its mass right into a "daughter" fabric, a greater good ingredient. Ex. Uranium 238 decays to lead with a a million/2 existence of a few thing like a bazillion years... So! Carbon 14 is an isotope it is latest in all until now living issues. by using understanding the a million/2 existence of Carbon 14 and understanding how numerous the isotope is particularly left as oppose to the daughter fabric, you may decide how previous a fosil is. Ex. Carbon 14 has a a million/2-existence of... idk, a hundred years (no longer authentic). you comprehend there is 25 grams of it in a fossil and seventy 5 grams of daughter fabric. So, It started as a a hundred gram fosil. (25+seventy 5=a hundred). there is 25 grams left meaning basically 1 / 4 of the orginal isotope. So from a hundred to 50 grams replaced into one a million/2 existence, from 50 to twenty-5 replaced into yet another a million/2 existence, so the fossil is two Carbon 14 a million/2-lives previous. A a million/2 existence is a hundred years (no longer somewhat) so the fosil is two hundred years previous. Thats basically an occasion theres no such ingredient as a 2oo year previous fossil, thats too youthful.
2016-10-18 12:22:45 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Carbon dating is used to establish the age of many items. All things emit radio activity. By using the half life of carbon atoms as a measuring point, Scientists are able to establish the age of an item. Half life of an atom equals the time it takes to deteriorate to half it's initial radio activity strength.
2006-10-04 13:27:15 · answer #3 · answered by Anonymous · 0⤊ 0⤋